Improvement in pintle of butt-hing-e



Meersseseww tateut @titte @sem LORENZ MAseHAUER AND WILLIAM FRANKFURTH,or MILWAU- une, Wisconsin.

" Letters Patent No. 83,393, elated October 27, 1868.

IMPROVEMENT IN PINTLE OF BUTT-HINGE.

The Schedule referrec'ito in these Letters Patent and making part: ofthe ,ac-une.

To all whom t may concern:

Be it known that we, LORENZ MAseHAUEu and WiL- LIAM FRANKFURTH, ofMilwaukee, inthe county oi' Milwaukee, and State of Wisconsin, haveinvented a new and useful Improvement in Butt-Hinges; and we do herebydeclare that'the ibllowing is a full, clear, and exact descriptiontl1ereof,wl1ich will enable others skilled in the art to make and usethe same, reference being had to the accompanying drawing, forming partof this speciiieation, in which the drawing represents aview ofaVbutt-hinge in an open state, partly' in section, and constructed inaccordance with our invention.

Similar letters of reference indicate likeparts.

This invention relates to a new and useful improvement in theconstruction of the pintle and eyes ofthe leaves of butt-hinges, wherebya door, shutter, or gate may be unhung without unscrewing either leat`of the butts. v

lhe invention consists ina peculiarconstruction of the pintle and eyesofthe leaves of the butt, whereby the pintle cannot be wholly withdrawnfrom the butt, and lost or mislaid,.but still drawn out su'liciently farto admit of one leaf of the butt being detached from the other.

A A represent the leaves of a butt-hinge, 011e leaf, A, being providedwith two eyes, a, a', at its inner edge, and the other leaf, A',provided with an eye, b, at its inner edge, to lit between the eyes aa', this arrangement being precisely the same as that of an ordinarybutt-hinge.

B is the pintle, which passes through the three eyes, a, a, and b. Thispintle is formed in a peculiar manner,

its lower end, c, being expanded or made larger in diameter than themainportion, d, the latter being of equal diameter throughout.

The internal diameter of the eye, b, of the leaf A', and the lower eye,a', or" the leaf A, are equal and sufiicientlyvlarge to admit of theenlarged end, c, of the pintle being drawn through them; but theinternal diameter of the eye a oi' leaf A is made tapering, the diameterof its.upper part being equal to that of the main part, b, ofthe pintle,and the lower part is recessed out, so that c maybe drawn within a, whenthe pintle is fully raised, but not allowed to pass through it, theinternal chamber of the upper part of a being too small to admit ofthat.

The pintle is passed through the several eyes from the bottom of thebutt upward, and a head, C, is seelued on the upper end of the pintle,to prevent it from dropping out ofthe eyes.

By thisA arrangement, the pintle may be raised, in order to disconnect,the two leaves, A A', ofthe butt, and at the same time the pintle cannotbe fully withf drawn from the butt, and consequently cannot be lost ormislaidl Having thus described my invention, l

I claim asA new, and desire to secure by Letters Patent- The pintle B,made of uniform diameter in its middle and upper part, and Aprovidedwith a tapering expanded lower end, c, in combination with the taperinginternal diameter of the upper eye, (l, substantially as v and for thepiu'pose set forth.

LORENZ MASCHAUER.

WM. FRANKF URTH.

Witnesses:

O'r'ro FIEBLNG, ALONZO J ONES.

